The Redskins invited free agent punter Kelly Goodburn to Redskin Park for a tryout today in the wake of another poor performance by Ralf Mojsiejenko.

Goodburn arrived in Washington late last night and was to work out for Redskins coaches this afternoon. It's unclear how serious they are about replacing Mojsiejenko, but if Goodburn punts well in the tryout, he likely will be in uniform for Sunday's game with the Chicago Bears at RFK Stadium.

"We're not satisfied with the punting," Coach Joe Gibbs said, "and I don't think Mojo {Mojsiejenko} is happy with the way he has performed either."

Mojsiejenko punted four times for a 33.5-yard average against the Dolphins and what especially upset coaches was his first one, a line-drive 36-yarder that set Miami up at the Washington 39-yard line in a scoreless game.

Overall, he's ranked 19th in the NFL with a 39.2-yard average. He's had a problem just getting work. His 43 punts are the fewest in the NFC and he has done an extraordinary job dumping the ball inside the 20-yard line (15 times).

But when the Redskins have needed a clutch long punt, he hasn't done well.

Goodburn, 28, began the season with the Chiefs after winning a training camp duel. He kept the job for four weeks.. Riggs to Test Arch

Running back Gerald Riggs will attempt to run for the first time since spraining his left arch three weeks ago in Philadelphia. He has been fitted with an orthodic device and given stiffer shoes that trainers hope will prevent the injury from happening again.

Riggs has been sidelined with the same injury twice in the last two years.

There's still no guess on when he'll be able to play again. Playoff Ticket Forms Mailed

The Redskins have mailed playoff ticket order forms to season seat owners. The Redskins could possibly host the NFC wild-card game on Jan. 5 or 6 and the NFC Championship game on Jan. 20.

Ticket prices are $30-45 for the wild-card game and $40-55 for the NFC Championship game.